Lamp.



W. E. ANKLAM.

LAMP.

APPLICATION FILED o0'r.21,191s.

Patented Mar. 16. 1915.

WILLIAM F. 0F DETTBDIT, MICEGAN, ASSIGNOR T8 (3.

M. HALL Kahlil h CO'MYANY, OF DETROIT,-MICEIGAN, A COIEEGRATION OFMICHIGAN.

Len-r.

Specification of Letters Ietent.

Patented T/fiar. 11c, 1 .915.

Application filed Dctober 21, 1913. Serial No. 796,381.

To all whom it may concern:

Be t known that 1, WILLIAM F. ANKLAM, a citizen of the United States ofAmerica, residing at Detroit, in the county of Wayne and State ofMichigan, have invented certain new and useful Improvements in Lamps, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

The invention relates to lamps particularly designed for use on motorvehicles, and it is the object to obtain a construction in which twolamps of different power are arranged within a common case withoutinterference with each other. Thus a single lamp fulfils the purpose ofthe headlight and dash-lights.

It is usual in headlight construction to focus the rays by a parabolicreflector, which limits the angle of distribution and concentrates thelight. It is necessary, however, that the filament of the lamp should belocated at the proper point for focusing, and

it is equally important that there should be no obstruction between thelamp and the reflector; Thus, where two difierent lamps are placed inthe same case both cannot be in focus, while the one out of focus willobstruct the rays from the one in focus. With my improved construction Ihave overcome this defect by placing the main, or high power lamp, 1nproper position of focus in relation to the parabolic reflector, whilethe auxiliary lamp. is placed in a niche in the reflector wall, thewalls of the niche being formed to produce a second reflector for theauxiliary lamp.

As shown in the'drawings: Figure 1 is a vertical, central, longitudinalsection through the lamp reflector, the outer casing being omitted; Fig.2 is a. front elevation thereof; and Fig. 3 is a. section on line M Fi1.

is the reflector for the main lamp which is of usual arabolic form.

B is an e ectriclamp placed in position for focus in relation to thisreflector and supported in a cylindrical lamp socket G projecting fromthe rear of the reflector.

D is a niche formed in the upper wall of on to the socket it willcontract its diameter w and clamp the lamp therein.

The construction described is one which is adapted to be used with anysuitable construction of lamp case, the bulge in the reflector formed bythe niche D heing ar ranged in the usual space provided between thereflector and the outer case, While this space also provides for theelectrical connections to'the lamps. These connections are formed offlexible conductors as indicatedat J and K and are attached to a commonplug socket L forengagement with the aperture in the outer case, notshown. Thus hoth lights may be controlled through a common multipleconnector, andas b oth the lamps and their cdunections are mounted. uponthe main reflectmr, the engagement with the case is facilitate? What I caim as my invention is:

1. The combination with a main reflector and a lamp fo'cusable inrelation thereto, of an auxiliary lamp arranged in a niche in saidreflector.

2. A parabolic lamp reflector having a niche or depression in a portionof its wall forming an auxiliary reflector, an auxiliary lamp in saidniche, and a main lamp focus able in relation to said parabolicreflector.

3. A detachable lamp reflector, main, and auxiliary. electric lam-pbulbs mounted on said reflector, electrical connections to' said lamps,and a common socket attached to said connections and removable with therefiector.

4. A detachable lamp reflector of general parabolic form and providedwith a niche or depression at one point in its Wall, main and auxiliarylamps located respectively in, focusable relation to the main reflectorand in the niche therein, tubular lamp sockets for said lamps projectingrearwardly from said'main reflector and niche, and a connector carried.by and detachable with Said. re-

flector, inclndinga common plug socket and branch connections therefromto the respective lamps. VV VVV 5. A lamp reflector, having its li allsfashioned for the focusingof a main lamp, and having in one portion aniche or depression forming a reflector for an auxiliary lamp.

I6. A parabolic lamp reflector, having a niche in. a portion of its Wallforming an auxiliary lamp reflector.

7. A parabolic lamp reflector, .having a 1,131.,eaa

niche in a portion of its wall forming an auxiliary lamp reflector, andtubular sockets, projecting respectively rearward from themain andauxiliary reflectors.

In testimony whereof I aifix my signature in presence of two Witnesses.

'- WILLIAM F. ANKLAM.

- Witnesses:

WM. J. BELKNAP, JAMES P. BARRY.

